Owner’s Manual

Pre One/A

Stereo Preamplifier

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Congratulations on your purchase. Please take a few moments to read this manual, and retain it for reference. The Pre One/A is the control center for your audiovideo system. It features versatile switching and dubbing capabilities, with six inputs for line level components. Two sets of master line outputs allow for either a direct subwoofer connection or multiple amplifiers. Two AC power inputs permit direct connection of system components. The Pre One/A carries a full, two year, transferrable warranty.

Front Panel Controls

Power

This front panel button switches the unit on or off. A multicolored LED indicates its power status.

Input Selector Buttons (Tape, Tuner, Aux, CD, DVD, LD)

Press any of these buttons to select the input source. The red LED indicates your selection. These buttons correspond to the wiring on the back panel, so the CD button, for example, selects the unit plugged into the CD input. The tape button activates a tape loop, allowing you to use a signal processor (graphic equalizer, sur round sound processor, etc.). The tape button can be on while another but- ton is also selected, allowing you to equalize or process CD’s, video- tapes, radio broadcasts, or other signals.

Bass & Treble Controls

Turn these controls clockwise to increase the amount of bass (low fre- quencies) or treble (high frequencies). The 12:00 position indicates a flat response, equal levels of bass, treble and midrange.

Balance Control

Turn this knob counterclockwise to increase the volume of the left channel, clockwise to increase the volume of the right channel. The 12:00 position indicates equal output to each channel.

Volume Control

Turn this control clockwise to increase the overall system volume. Be careful not to set the volume so high as to cause distortion, as this could damage the speakers and amplifier.

Hooking up the Wires

All components plug into the RCA jacks on the rear panel of the Pre One/A. This is the recommended wiring.

Outboard Processor Configuration

When using an outboard processor, such as a graphic equalizer, fol- low this simple chain.

LD LD stands for LaserDisc. Plug the line out (audio) jacks from a LaserDisc or other video component into these jacks. DVD Plug the line out (audio) jacks from a DVD or other video component into these jacks.

CD Plug the line out jacks from a CD into these jacks.

Aux Plug the line out jacks from any line level component into these jacks.

Tuner Plug the line out jacks from a tuner/radio into these jacks. Tape In Plug the tape out (play) jacks from a cassette deck into these jacks.

Tape Out Plug the tape in (rec) jacks from a cassette deck into these jacks.

Line Out 1 Plug these jacks into the line in jacks of a stereo power amplifier.

Line Out 2 These jacks are a convenience. You may connect them to, perhaps, a powered subwoofer or another amplifier.

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AudioSource AMPONE/A owner manual Front Panel Controls, Hooking up the Wires
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AMPONE/A specifications

The AudioSource AMPONE/A is a compact yet powerful amplifier designed to deliver high-quality audio performance for various applications. Ideal for home theaters, multi-room audio systems, and commercial installations, this amplifier provides an impressive combination of features and technologies tailored to meet the needs of audiophiles and casual listeners alike.

One of the standout characteristics of the AMPONE/A is its Class D amplification technology. This allows the amplifier to deliver a remarkable amount of power in a lightweight and energy-efficient package. With a power output of 50 watts per channel at 8 ohms, and up to 70 watts per channel at 4 ohms, the AMPONE/A is capable of driving a wide range of speakers, ensuring optimal sound reproduction for any listening environment.

The AMPONE/A is equipped with a variety of input options, including RCA and speaker-level inputs, which provide flexibility in connectivity. This allows users to easily integrate the amplifier into existing setups, whether using it with traditional speakers or connecting it to a powered subwoofer for enhanced low-end response. The inclusion of a 12V trigger output also enables automated power on/off functionality, making it a convenient choice for modern audio systems.

Another impressive feature of the AMPONE/A is its compact size, making it an excellent choice for those with limited space. Measuring just 11.75 inches wide, 6.5 inches deep, and 2.5 inches high, the amplifier can be easily placed on shelves or mounted in entertainment centers without consuming valuable space.

In terms of sound quality, the AMPONE/A does not disappoint. With a frequency response that ranges from 20 Hz to 20 kHz, listeners can expect a well-balanced audio profile that captures every detail in their favorite music, movies, or television shows. The low distortion levels and high signal-to-noise ratio contribute to an immersive listening experience that rivals larger, more complex amplifiers.

The sturdy construction of the AMPONE/A ensures durability and longevity. The metal chassis provides protection against interference and ensures reliable performance over time. Additionally, the sleek design and elegant finish make it a visually appealing addition to any audio setup.

In conclusion, the AudioSource AMPONE/A is a versatile and powerful amplifier that combines modern technologies with user-friendly features. Its compact size, robust power output, and high sound quality make it an excellent choice for anyone looking to enhance their audio experience, whether at home or in a commercial setting.
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